Olympus OM-D E-M1 specification highlights:
16MP MOS Four Thirds format sensor with no low-pass filter
On-sensor phase detection elements
Twin control dials (front and rear) with '2x2' dual-mode option
'5-axis' image stabilization with automatic panning detection ('S-IS Auto')
ISO 'LOW' (100 equiv) - ISO 25,600
Up to 10fps continuous shooting (6.5 fps shooting with continuous AF)
1.04M-dot 3" LCD touchscreen display - tilts 80° upwards and 50° downwards
Electronic viewfinder: 2.36M-dot LCD, 0.74x magnification (equiv.), eye sensor
Built-in Wi-Fi for remote shooting and image transfer to smartphone or tablet
Dust, splash and freeze-proof (to -10 °C)
Gained over the E-M5
True Pic VII processor, with lens corrections
1/8000 sec top shutter speed, 1/320 sec flash sync
Built-in microphone socket (rather than optional accessory adapter)
Flash X-sync socket
Built-in Wi-Fi
Focus 'peaking' display
In-camera HDR blending (two modes), previewed in viewfinder